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Move mcl_util.hash to a local function
It is probably unlikely it will be useful at other places in Mineclone2.
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@ -405,11 +405,3 @@ function mcl_util.get_object_center(obj)
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pos.y = pos.y + (ymax - ymin) / 2.0
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return pos
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end
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-- Compute a hash value.
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function mcl_util.hash(value)
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-- minetest.get_password_hash is quite fast, even if it uses a
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-- cryptographic hashing function (SHA-1). It is written in C++ and it
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-- is probably hard to write a faster hashing function in Lua.
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return string.sub(minetest.get_password_hash("ryvnf", minetest.serialize(value)), 1, 8)
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end
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@ -1,5 +1,13 @@
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local efficiency_cache_table = {}
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-- Compute a hash value.
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function compute_hash(value)
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-- minetest.get_password_hash is quite fast, even if it uses a
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-- cryptographic hashing function (SHA-1). It is written in C++ and it
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-- is probably hard to write a faster hashing function in Lua.
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return string.sub(minetest.get_password_hash("ryvnf", minetest.serialize(value)), 1, 8)
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end
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-- Get the efficiency groupcaps and hash for a tool and efficiency level. If
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-- this function is called repeatedly with the same values it will return data
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-- from a cache.
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@ -18,7 +26,7 @@ local function get_efficiency_groupcaps(toolname, level)
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if not levelcache then
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levelcache = {}
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levelcache.values = mcl_autogroup.get_groupcaps(toolname, level)
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levelcache.hash = mcl_util.hash(levelcache.values)
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levelcache.hash = compute_hash(levelcache.values)
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toolcache[level] = levelcache
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end
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